Fume hoods are critical safety equipment in chemical laboratories. Incorrect installation or poor maintenance can expose staff to hazardous vapors. Installation begins with selecting a proper location. Place the fume hood in an area free from strong air currents, such as near doors and windows, to avoid airflow disruption. Choose ductwork made from corrosion-resistant materials like PVC or stainless steel. Ensure ducting runs are as straight as possible to maintain steady airflow. Utility connections for gas, electricity, and water should be safely installed according to lab safety codes. Emergency shut-off valves must be positioned nearby for quick isolation in emergencies. It is important to level the fume hood and properly seal all joints to prevent air leaks.

Daily maintenance includes checking that airflow monitors are functional and confirming that the sash glass moves smoothly. Ensure that no equipment or materials block the exhaust vents. Monthly inspections should focus on the condition of ductwork, detecting any signs of corrosion or blockage. Pre-filters, if present, must be cleaned or replaced regularly. Annual maintenance involves calibrating the airflow face velocity, replacing filters, and inspecting the exhaust fan and motor for stable operation. Staff training is essential to ensure all laboratory personnel understand safe operating procedures and emergency response actions.

Common mistakes in installation and maintenance include using poor-quality duct materials that corrode quickly, placing the fume hood in unstable airflow environments, and failing to conduct routine maintenance, which reduces the efficiency and safety of the equipment.

By following these clear guidelines, laboratories can ensure their fume hoods operate safely, protect staff from chemical exposure, and extend the useful life of their equipment. Proper installation and maintenance also support compliance with modern laboratory safety standards.